In today’s episode of ‘The West Block’: It's high grade and "not replaceable from other places in the world." Ontario's Representative in Washington, David Paterson, has been in high level discussions on possible trade tariffs imposed by the U.S. and tells us what Canada has that America would be challenged to live without. And, Chief of the Defence Staff, General Jennie Carignan, talks military procurement. With U.S. President Donald Trump's relentless pressure on NATO countries to pay more, could a different, faster way of procuring military hardware be possible?